CN203203665U - Comparison tester for bidirectional airflow and reaction speed of automotive flowmeter - Google Patents
Comparison tester for bidirectional airflow and reaction speed of automotive flowmeter Download PDFInfo
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- CN203203665U CN203203665U CN 201320178476 CN201320178476U CN203203665U CN 203203665 U CN203203665 U CN 203203665U CN 201320178476 CN201320178476 CN 201320178476 CN 201320178476 U CN201320178476 U CN 201320178476U CN 203203665 U CN203203665 U CN 203203665U
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- air flowmeter
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Abstract
The utility model provides a comparison tester for bidirectional airflow and reaction speed of an automotive flowmeter. The comparison tester comprises a crankshaft, a piston cylinder component, a drive motor, a data collector and a data analyzer, wherein the crankshaft comprises a main journal and at least two rod journals; the crankshaft is in a moment balance state; the drive motor is connected with the main journal, and is used for driving the crankshaft to do rotational movement around the crankshaft; each rod journal is connected with a piston through a connecting rod, and is used for transforming the rotational movement of the crankshaft into the straight-line back and forth movement of the piston in a cylinder; an air vent is arranged at the end part of the cylinder back to the piston; and the air vent is communicated with an air flowmeter which is used for testing the flow of air sucked into the air vent and exhausted from the air vent when the piston does straight-line back and forth movement. With the adoption of the comparison tester for the bidirectional airflow and the reaction speed of the automotive flowmeter, tests in an air inlet direction and in an air outlet direction can be simultaneously carried out, and the comparison test of multiple indexes such as reaction speed is carried out. Compared with unidirectional test and bidirectional separated test manners in the prior art, the time and the cost can be saved due to the adoption of the comparison tester for the bidirectional airflow and the reaction speed of the automotive flowmeter.
Description
Technical field
The utility model belongs to the auto parts machinery field, is specifically related to the contrast test instrument of a kind of flow motor meter two-way airflow and reaction velocity.
Background technology
Automobile air flow meter is indispensable visual plant in the modern electronic automobile gas handling system, be used for measuring engine air inlet, go out airshed, and be converted to the control module (ECU) that voltage signal offers engine, as one of the main foundation of best distributive value under each operating mode of ECU calculation engine.According to statistics, China produces the nearly various schools of thinkers of enterprise of automobile air flow meter, and the automobile air flow meter kind of producing reaches the hundreds of kind, for estimating the quality of its quality, needs corresponding detection platform that it is detected and estimates.Show according to documents and materials, domestic checkout equipment to automobile air flow meter also is in the starting conceptual phase at present, the checkout equipment of most producers all can only carry out the flow detection of single direction, and namely airintake direction and outgassing direction need separate detection, and this makes that the detection step is too loaded down with trivial details; Simultaneously present automobile air flow meter checkout equipment also lacks measured flux meter evaluation means intuitively.
The utility model content
The utility model provides the contrast test instrument of a kind of flow motor meter two-way airflow and reaction velocity at above-mentioned the deficiencies in the prior art; The contrast test instrument of this flow motor meter two-way airflow and reaction velocity can be simultaneously to the airintake direction of air flowmeter, and outgassing direction and reaction velocity detect, and measuring speed is fast, efficient is high.
The utility model is achieved by the following technical solution:
The contrast test instrument of a kind of flow motor meter two-way airflow and reaction velocity comprises bent axle, at least two piston cylinder components, drive motor, data acquisition unit and data analyzers; Each piston cylinder component includes a cylinder and a piston that cooperates with cylinder;
Described bent axle comprises a king journal and at least two rod journals, and described bent axle is in the equalising torque state;
Described drive motor links to each other with king journal, be used for to drive bent axle and rotates around himself axis;
Described each rod journal all links to each other with piston by a connecting rod, is used for rotatablely moving of bent axle is converted to the straight line back and forth movement of piston in cylinder;
Described cylinder is provided with an air hole back to the end of piston, and described air hole and air flowmeter are connected, the air mass flow that sucks and discharge in the air hole when doing the straight line back and forth movement for the test piston;
Described data acquisition unit links to each other with air flowmeter, is used for gathering the flow number of air flowmeter output; Described data analyzer links to each other with data acquisition unit, is used for the data of data collector collection are carried out analyzing and processing.
The contrast test instrument of flow motor meter two-way airflow described in the utility model and reaction velocity has following beneficial effect:
1, piston be arranged in the air flowmeter of cylinder end existing air inlet and give vent to anger again, so the utility model can carry out the test of airintake direction and outgassing direction simultaneously along with being rotated in of bent axle done the straight line back and forth movement in the cylinder in the utility model.Compare with unidirectional test of the prior art, the two-way test mode of separating, the utility model can be saved time and cost.
2, the utility model can compare test to the reaction velocity of air flowmeter; Under the driving of drive motor and bent axle, piston is done the shuttling movement that straight line comes and goes in cylinder, in each cyclic process, air velocity is constantly to change, flow also changes, the data on flows of air flowmeter output also changes, and the change curve of data on flows is similar to sine wave.When the drive motor rotating speed increased, the cycle of piston cycle motion was very short, and change in flow is faster, and the data on flows of air flowmeter output is also corresponding to be changed fast; Whether the sine wave curve by contrasting product to be measured output and the sine wave curve of benchmark air flowmeter output coincide, and whether the reaction velocity that just can directly judge them unanimity, thus the contrast test of realization response speed.And also do not have at present measuring method or equipment can realize contrast test to the reaction velocity of air flowmeter in the prior art.
3, the flow number of benchmark air flowmeter and air flowmeter to be tested is exported simultaneously in the utility model, therefore can carry out the data contrast in real time; Can judge in the process that test is carried out, in case air flowmeter to be tested and benchmark air flowmeter difference are bigger, can directly end test.Separate test with benchmark air flowmeter of the prior art and air flowmeter to be tested, the mode that compares again after all test is finished is compared, and measuring speed of the present utility model is faster, and efficient is higher.
4, the utility model can carry out the contrast test of multiple index, can test out the deviation under the maximum deviation, minimum deflection, same actual flow of benchmark air flowmeter and air flowmeter to be tested easily, and the deviation of benchmark air flowmeter and air flowmeter reaction velocity to be tested; And test result is directly perceived, reliable.
5, the utility model can be according to any test request, the curve of design ideal flow number and time, opisometer by design is calculated parameters such as motor speed in the tester, cylinder cross-sectional area, adopt tester to carry out the contrast test of benchmark air flowmeter and air flowmeter to be tested afterwards again, so can realize any test easily.Compare with method of testing complicated in the prior art, the utility model test is simple, convenient.
6, bent axle is in the equalising torque state all the time on the utility model tester, and piston cylinder component need be symmetricly set on the both sides of bent axle, can remain balance when bent axle rotates like this, so can reduce noise, reduce vibrations, improve testing reliability, increase the service life.
7, a plurality of air flowmeter to be tested can be installed on the utility model tester, so can realize simultaneously the test to a plurality of air flowmeter; And existing data acquisition unit generally all is multichannel, tests a plurality of air flowmeter so simultaneously, and more the reasonable use resource improves testing efficiency.
Description of drawings
Fig. 1 is the structural representation of tester described in the utility model;
Among the figure: king journal 1, rod journal 2, connecting rod 3, piston 4, cylinder 5, benchmark air flowmeter 6, air flowmeter to be tested 7, air hole 8.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides the contrast test instrument of a kind of flow motor meter two-way airflow and reaction velocity, comprises bent axle, at least two piston cylinder components, drive motor, data acquisition unit and data analyzers; Each piston cylinder component includes a cylinder 5 and a piston 4 that cooperates with cylinder 5; Described bent axle comprises a king journal 1 and at least two rod journals 2, and described bent axle is in the equalising torque state; Described drive motor links to each other with king journal 1, be used for to drive bent axle and rotates around himself axis; Described each pitman shaft 2 neck all link to each other with piston 4 by a connecting rod 3, are used for rotatablely moving of bent axle is converted to the straight line back and forth movement of piston 4 in cylinder 5;
Described cylinder 5 is provided with an air hole 8 back to the end of piston 4, described air hole 8 is connected with benchmark air flowmeter 6 or air flowmeter to be tested 7, the air mass flows that suck and discharge in the air hole 8 when being used for test piston 4 and doing the straight line back and forth movement so namely can realize the two-way airflow test.Wherein only need the air hole 8 on the cylinder 5 to connect with benchmark air flowmeter 6, as the benchmark of test, the air hole 8 on all the other cylinders 5 all will be installed air flowmeter 7 to be tested.
Described data acquisition unit all links to each other with air flowmeter 7 to be tested with benchmark air flowmeter 6, is used for gathering the flow number of benchmark air flowmeter 6 and air flowmeter to be tested 7 outputs; Described data analyzer links to each other with data acquisition unit, is used for the data of data collector collection are carried out analyzing and processing.
Wherein benchmark air flowmeter 6 can be any known good air flowmeter of duty, thinks in the utility model that benchmark air flowmeter 6 is output as desirable output.
Piston cylinder component and rod journal 2 can also increase, but want paired increase, keep the balance of bent axle, on the cylinder 5 of increase air flowmeter 7 to be tested can also be installed again, test simultaneously.
Adopt above-mentioned contrast test instrument to carry out the contrast test of flow motor meter two-way airflow and reaction velocity, may further comprise the steps:
(1) benchmark air flowmeter 6 and at least one air flowmeter 7 to be tested are installed on the contrast test instrument;
(2) start drive motor bent axle is rotated, piston 4 is along with being rotated in of bent axle done the straight line back and forth movement in the cylinder 5, and existing air inlet is given vent to anger again in the air hole 8 of cylinder 5 ends.
(3) gather the output numerical value of benchmark air flowmeter 6 and the output numerical value of air flowmeter to be tested 7 in real time by data acquisition unit, and analyze and to be converted to digital signal and to export data analyzer to, described data analyzer can be the data analyzer that can carry out on-line data analysis of computing machine or other types.The crankshaft rotating motion drives piston 4 and does rectilinear motion, makes the gas in the cylinder 5 suck or discharge by air hole 8, so the output numerical value real-time change of air flowmeter, and is corresponding one by one with the time.At present, the output numerical value of air flowmeter generally all is voltage signal, and this voltage signal is along with the variation of actual flow numerical value changes.
(4) the output numerical value A of benchmark air flowmeter 6 and the output numerical value B of air flowmeter to be tested 7 are compared, draw test result.
Concretely, described control methods comprises:
(4.1) draw output numerical value A and the output numerical value B change curve with respect to the time;
(4.2) whether the curve of specific output numerical value A and the curve of output numerical value B are coincide; If coincide, it is consistent with the reaction velocity of benchmark air flowmeter then to draw air flowmeter to be tested, finishes contrast; If misfit, the reaction velocity that then draws air flowmeter to be tested and benchmark air flowmeter is inconsistent, enters step (4.3);
(4.3) to the maximal value of specific output numerical value A and output numerical value B, draw the maximum deviation of benchmark air flowmeter 6 and air flowmeter 7 measurement results to be tested;
(4.4) to the minimum value of specific output numerical value A and output numerical value B, draw the minimum deflection of benchmark air flowmeter 6 and air flowmeter 7 measurement results to be tested;
Inscribe the numerical values recited of output numerical value A and output numerical value B when (4.5) contrasting any one, draw the deviation of benchmark air flowmeter 6 and air flowmeter 7 measurement results to be tested under same actual flow;
(4.6) in the output numerical value A of benchmark air flowmeter 6, select an output numerical point arbitrarily, contrast benchmark air flowmeter 6 arrives the time that this exports numerical point with air flowmeter 7 to be tested, and the difference of described time is the deviation of benchmark air flowmeter 6 and air flowmeter 7 reaction velocitys to be tested.
The above is preferred embodiment of the present utility model, and all equivalent variations of doing according to the utility model claim all should belong to protection domain of the present utility model.
Claims (1)
1. the contrast test instrument of a flow motor meter two-way airflow and reaction velocity is characterized in that, comprises bent axle, at least two piston cylinder components, drive motor, data acquisition unit and data analyzers; Each piston cylinder component includes a cylinder and a piston that cooperates with cylinder;
Described bent axle comprises a king journal and at least two rod journals, and described bent axle is in the equalising torque state;
Described drive motor links to each other with king journal, be used for to drive bent axle and rotates around himself axis;
Described each rod journal all links to each other with piston by a connecting rod, is used for rotatablely moving of bent axle is converted to the straight line back and forth movement of piston in cylinder;
Described cylinder is provided with an air hole back to the end of piston, and described air hole and air flowmeter are connected, the air mass flow that sucks and discharge in the air hole when doing the straight line back and forth movement for the test piston;
Described data acquisition unit links to each other with air flowmeter, is used for gathering the flow number of air flowmeter output; Described data analyzer links to each other with data acquisition unit, is used for the data of data collector collection are carried out analyzing and processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178476 CN203203665U (en) | 2013-04-10 | 2013-04-10 | Comparison tester for bidirectional airflow and reaction speed of automotive flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178476 CN203203665U (en) | 2013-04-10 | 2013-04-10 | Comparison tester for bidirectional airflow and reaction speed of automotive flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203665U true CN203203665U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320178476 Withdrawn - After Issue CN203203665U (en) | 2013-04-10 | 2013-04-10 | Comparison tester for bidirectional airflow and reaction speed of automotive flowmeter |
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| CN (1) | CN203203665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234605A (en) * | 2013-04-10 | 2013-08-07 | 温州百岸汽车零部件有限公司 | Contrast test method and tester for two-way air flow and reaction speed of automotive flow meter |
| CN103728151A (en) * | 2014-01-17 | 2014-04-16 | 浙江杭钻机械制造股份有限公司 | Bionic simulation device inside escape capsule |
-
2013
- 2013-04-10 CN CN 201320178476 patent/CN203203665U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234605A (en) * | 2013-04-10 | 2013-08-07 | 温州百岸汽车零部件有限公司 | Contrast test method and tester for two-way air flow and reaction speed of automotive flow meter |
| CN103234605B (en) * | 2013-04-10 | 2015-06-24 | 温州百岸汽车零部件有限公司 | Contrast test method and tester for two-way air flow and reaction speed of automotive flow meter |
| CN103728151A (en) * | 2014-01-17 | 2014-04-16 | 浙江杭钻机械制造股份有限公司 | Bionic simulation device inside escape capsule |
| CN103728151B (en) * | 2014-01-17 | 2016-03-09 | 浙江杭钻机械制造股份有限公司 | Bionic simulation device inside escape capsule |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20150624 |
|
| RGAV | Abandon patent right to avoid regrant |